Radial velocity “slit shifts” between absorption lines in individual exposures and the same lines in the mean spectrum. Left panel: shifts for the 390 nm (crosses) and 580 nm (triangles) settings. Right panel: shifts for the 437 nm (crosses) and bluer chip of the 760 nm (triangles) settings. In both panels, blue points correspond to the first analysis approach and the red points correspond to the second analysis approach. Representative error bars for each analysis approach are shown in each panel.